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TWO:JAPANESE CHILDREN AT PLAY. JAPANESE CHILDREN AT PLAY.

Membrane separation type solvent dehydration system

Great attention is recently being paid to global environmental issues, and it is now conceivable that companies will need to treat used solvents themselves. In consideration of this kind of social issue, we have developed a “membrane separation type solvent dehydration system,” which uses a polyimide membrane with superior dehydration properties developed by Ube Industries, Ltd. in combination with our own distillation and concentration technology that has resulted in solvents being more easily recovered.

THREE:Mr. Flack, who was seated in his arm-chair by the fire-place, looked up in amazement. His interest in cricket was immense, but chronic rheumatism prevented him from getting as far as the ground. He was dependent upon Arthur's reports and the local paper. "'Ow's that, then?" he demanded, slowly.
  • 1Under the distillation system, even in case of azeotropic solvent compositions, this system which remove water vapor by the polyimide membrane will easily dehydrate.
  • 2In comparison with the distillation system, it significantly saves on use of steam.
  • 3Dehydration can be performed through merely supplying evaporated vapor to the membrane module and maintaining the differential pressure between the permeable side and the impermeable side.
  • 4Solvent purity of 99.9% or more can be achieved by carrying out dehydration with a polyimide membrane only.
  • 5The polyimide membrane has superior heat and solvent resistance. Therefore, the vapor permeation system reduces contamination of the membrane and thus extends its life.
THREE:"It is a long story," said Doctor Bronson, "and I am not sure that you will find it altogether interesting; but it is a part of Japanese history that you ought to know, especially in view of the fact that the Samurai exist no longer. With the revolution of 1868 and the consequent overthrow of the old customs, the Samurai class was extinguished, and the wearing of two swords is forbidden.

The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE: "Then we have had glimpses of the way the people spin cotton, and perform other work in the manufacturing line. Their apparatus is very[Pg 299] simple, and it is rather surprising than otherwise that they can accomplish so much with so little machinery. Then we have walked about the streets, and several times we have had close escapes from being run over by some of the carts that were carrying heavy loads. With two men to push them, and two pulling at the same time, they will move loads that would be no small matter for a pair of horses. They keep up a great shouting, and at first it puzzles you to know why they do it until you remember that it is desirable they should all pull together. You can hear them a long way off, and if you get in their way it is your own fault, as it was ours.On a day late in October our company were in bivouac after some hard night-riding. Some twenty-five miles west of us the brigade had been resting for several days on the old camp-ground at Gallatin, but now they were gone to union Springs. Ferry, with a few men, was scouting eastward. Quinn awaited only his return in order to take half a dozen or so of picked fellows down southward and westward about Fayette. Between ten and eleven that night a corporal of the guard woke me, and as I flirted on my boots and jacket and saddled up, said Ferry was back and Quinn gone. I reported to Ferry, who handed me a despatch: "Give that to General Austin; he has gone back to Gallatin--without the brigade--to wait--with the others"--his smile broadened.
  • 1 Recovery of the detergent solvent Recovery of the cleaning solvent such as electronic parts industry, precision instrument industry.
  • 2Solvent recovery and the refinement Solvent recovery and the refinement such as chemical industry, an industry of medical supplies, food industry, the fermentation industry.
THREE:Ill find an answer thats good enough for them, he said to himself, as he slipped the letter into his post-box.{246}

Acetone, ethanol, methyl ethyl ketone, butanol, isopropyl alcohol, ethyl acetate, methyl isobutyl ketone, others (including hexane and toluene).